Regions

Hawaii

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The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

News

Map showing the islands of Hawaii to show the areas where coral reefs are found.
July 1, 2019

A new USGS Open-File Report describes the coral reefs of Maui, Moloka‘i, Lānaʻi, and Kahoʻolawe in detail, including location, extent, coral cover, and connectivity.

100-year flood areas Maui, Hawaii
June 26, 2019

Coastal and Marine Research From Across the USGS

11:47 a.m. HST. Scientist measures the surface temperature of a cra...
May 8, 2019

The team at the U.S. Geological Survey Hawaiian Volcano Observatory is one of several finalists nominated for the 2019 Service to America Medals.

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Aerial photograph of Wake Island. The deep ocean water around the atoll is dark blue, the shallow lagoon water is light blue.
Date Published: July 15, 2019
Status: Active

Low-lying areas of tropical Pacific islands

Sea level is rising faster than projected in the western Pacific, so understanding how wave-driven coastal flooding will affect inhabited, low-lying islands—most notably, the familiar ring-shaped atolls—as well as the low-elevation areas of high islands in the Pacific Ocean, is critical for decision-makers in protecting infrastructure or relocating resources and people.

Contacts: Curt Storlazzi
Camera was positioned halfway in and out of water to show a coastal bluff with vegetation in background, coral reef underwater.
Date Published: July 15, 2019
Status: Active

Sea-Level Rise and Climate Change Impacts to Reefs

This study is part of the USGS Coral Reef Project.

Contacts: Curt Storlazzi
Image: The USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit Eruption
Date Published: July 15, 2019
Status: Active

Coral Reef Project: Hawaiʻi

As part of the USGS Coral Reef Project, the USGS is working on the Kona (west) coast of Hawaiʻi to evaluate geologic resources at two historical parks.

Contacts: Curt Storlazzi
Aerial view of the coastline of Kauai Island
Date Published: July 15, 2019
Status: Active

Coral Reef Project: Kauaʻi

As part of the USGS Coral Reef Project, the USGS is working on the island of Kauaʻi to identify circulation patterns and a sediment budget for Hanalei Bay to help determine any effects to the coastal marine ecosystem.

Contacts: Curt Storlazzi
Coral head that looks like lettuce sits on sandy bottom in clear blue water and is surrounded by brightly colored fish.
Date Published: July 15, 2019
Status: Active

Coral Reef Project

Explore the fascinating undersea world of coral reefs. Learn how we map, monitor, and model coral reefs so we can better understand, protect, and preserve our Nation's reefs.

Contacts: Curt Storlazzi
Small silver metal boat with USGS lettering on the side, water is splashing up on the side and a small wake is formed.
Date Published: June 3, 2019
Status: Active

PCMSC Marine Facility (Marfac)

Marfac is the operational arm of the Pacific Coastal and Marine Science Center. The Marine Facility staff provides mechanical and electronics expertise for field operations along the coast, in the nearshore environment, and in the deeper waters of the ocean.

Contacts: Timothy Elfers
Sunset in Hawaii
Date Published: May 6, 2019
Status: Active

Coral Reef Project: Kahoʻolawe

As part of the USGS Coral Reef Project, the USGS is trying to better understand how nearshore processes impact the deeper, scattered coral reef communities of Kahoʻolawe.

Contacts: Curt Storlazzi
Image: Waterfall, Maui, Hawaii
Date Published: May 6, 2019
Status: Active

Coral Reef Project: Maui

As part of USGS Coral Reef Project studies, the USGS has been heavily involved in efforts to improve the health and resilience of Maui's coral reef system, bringing expertise in mapping, circulation and sediment studies, and seismic surveys.

Contacts: Curt Storlazzi
Sky view of the coastline of a mountainous island with a shallow coral reef that has lots of deep holes and channels.
Date Published: May 6, 2019
Status: Active

Coral Reef Project: Molokaʻi

As part of the USGS Coral Reef Project, recent USGS work on Molokaʻi includes looking into the coral record to find clues to past sedimentation events.

Contacts: Curt Storlazzi
View of Oahu, Hi
Date Published: May 6, 2019
Status: Active

Coral Reef Project: Oʻahu

As part of the Coral Reef Project, the USGS is working closely with other local groups to investigate poor water quality issues in Maunalua Bay on the southeast coast of Oʻahu.

Contacts: Curt Storlazzi
Researcher samples sediments on exposed cliff face.
Date Published: March 28, 2019
Status: Active

Sea Level and Storm Hazards: Past and Present

Sea level and Storm Hazards: Past and Present is a multidisciplinary study of past changes in sea level. Prehistoric shorelines can be used as a baseline for current and future sea level changes under warmer-than-present climate. Emphasis is placed on looking at sea levels during warm periods of the last 500,000 years as well as how base level changes increase the risk of coastal inundation...

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Map of the Pacific Ocean and surrounding continents with boxes drawn around areas to show study locations.
April 30, 2019

This data release provides flooding extent polygons (flood masks) and depth values (flood points) based on wave-driven total water levels for 22 locations within the States of Hawaii and Florida, the Territories of Guam, American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the Commonwealth of the Northern Mariana Islands. For each of the 22 locations there are eight associated flood mask

USGS
April 8, 2019

Spatial measurements of water temperature, specific conductance, salinity, pH, dissolved oxygen, and turbidity between 0.25 and 0.50 m water depth were collected every 10-seconds along and across shore at 12 principal study areas along west and east Hawaii Island. Measurements were made between 2010 and 2013 during different seasons and tide states over the course of 1.0 to 2.5 hours to evaluate

USGS
April 8, 2019

Time-series data of water temperature were collected at 33 locations along the west coast of the Island of Hawaii, including within Kaloko-Honokohau National Historical Park (KAHO), and Puu o Honaunau National Historical Park (PUHO) between 2010 and 2013 in nearshore coral reef and anchialine pool settings. Temperature sensors were attached to fossil limestone, rock or dead coral within otherwise

Bottom graphic shows view of river and beach from above, top graphic illustrates sediment in same area labeled.
March 21, 2019

This data release supports a study that reports on efforts to estimate future tsunami inundation through stratigraphic analyses of potential tsunami deposits beneath present and former Hawaiian wetlands, coastal lagoons, and river floodplains.

USGS
March 21, 2019

This portion of the data release presents radiocarbon age data from 66 samples collected from Anahola Valley (Kaua'i), Kahana Valley (O'ahu), and Pololu Valley (Hawai'i). Sample ages were determined by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility. The data are provided in a comma-delimited spreadsheet (.csv).

USGS
March 21, 2019

This portion of the data release presents sediment grain-size data from samples collected from Anahola Valley, Kaua`i, Hawai`i in November, 2015 (USGS Field Activity 2015-671-FA). 63 sand and mud samples were taken from sediment cores that were collected using a ‘Russian’ corer (a hand-held, side-filling peat auger) from two site locations. Site locations were determined using a hand-held glo

NWIS Mapper screenshot
March 5, 2019

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

Map of a coastline and the areas that have been mapped are labeled with dots and letters.
February 14, 2019

The data described here were collected as part of a larger study to examine habitat conditions and coral health with respect to exposure to submarine groundwater discharge (SGD) and urban land uses.

USGS
January 1, 2019

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the Territory of Puerto Rico (the islands of Culebra, Puerto Rico, and Vieques). For each island there are 8 associated flood mask and flood depth shapefiles: one for each four nearshore wave energy return periods (r

USGS
January 1, 2019

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the State of Hawaii (the islands of Hawaii, Kahoolawe, Kauai, Lanai, Maui, Molokai, Niihau, and Oahu). For each island there are 8 associated flood mask and flood depth shapefiles: one for each of four nearshore wave

USGS
January 1, 2019

Seafloor photographs were collected by SCUBA divers along pre-determined transects using an underwater digital camera following benthic survey protocols developed by the National Park Service (NPS) at Kaloko-Honokohau National Historical Park (Marrack and others, 2014; Weijerman and others, 2014) and modeled after the U.S. Geological Survey (USGS) and NPS coral reef survey protocols (Rogers and o

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Thermal map of Kīlauea Caldera
July 17, 2019

This thermal map, which was constructed by merging about 1300 images from a morning helicopter overflight on April 8, shows the distribution of some prominent thermal features in Kīlauea's summit caldera

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Map of Submerged Lands
March 15, 2016

Links to publications that contain maps of the sea floor or lake beds and the digital data used to create them.

Pu‘u ‘Ō‘ō cone and surroundings as of July 2000...
July 1, 2000

Pu‘u ‘Ō‘ō cone and surroundings as of July 2000, showing the area covered (mauve color) by lava since February 1997 during episode 55. Inside the crater of Pu‘u ‘Ō‘ō, the "trough" is the drained lava pond of September–October 1999. The central portion of the trough was briefly filled with lava in February 2000.

Pu‘u ‘Ō‘ō cone and surroundings as of March 2000...
March 1, 2000

Pu‘u ‘Ō‘ō cone and surroundings as of March 2000 showing the area covered (dark gray) by lava since February 1997 during episode 55. Inside the crater of Pu‘u ‘Ō‘ō, the "trough" is the drained lava pond of September–October 1999. The central portion of the trough was briefly filled with active lava in February 2000.

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Year Published: 2019

Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction

The degradation of coastal habitats, particularly coral reefs, raises risks by increasing the exposure of coastal communities to flooding hazards. The protective services of these natural defenses are not assessed in the same rigorous economic terms as artificial defenses, such as seawalls, and therefore often are not considered in decision making...

Storlazzi, Curt D.; Reguero, Borja G.; Cole, Aaron D.; Lowe, Erik; Shope, James B.; Gibbs, Ann E.; Nickel, Barry A.; McCall, Robert T.; van Dongeren, Ap R.; Beck, Michael W.
Storlazzi, C.D., Reguero, B.G., Cole, A.D., Lowe, E., Shope, J.B., Gibbs, A.E., Nickel, B.A., McCall, R.T., van Dongeren, A.R., and Beck, M.W., 2019, Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction: U.S. Geological Survey Open-File Report 2019–1027, 42 p., https://doi.org/10.3133/ofr20191027.

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Year Published: 2019

Sedimentary evidence of prehistoric distant-source tsunamis in the Hawaiian Islands

Over the past 200 years of written records, the Hawaiian Islands have experienced tens of tsunamis generated by earthquakes in the subduction zones of the Pacific "Ring of Fire" (e.g., Alaska-Aleutian, Kuril-Kamchatka, Chile, and Japan). Mapping and dating anomalous beds of sand and silt deposited by tsunamis in low-lying areas along Pacific...

La Selle, Seanpaul; Richmond, Bruce M.; Jaffe, Bruce E.; Nelson, Alan; Griswold, Frances; Arcos, Maria E.M.; Chague, Catherine; Bishop, James M.; Bellanova, Piero; Kane, Haunani H.; Lunghino, Brent D.; Gelfenbaum, Guy R.

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Year Published: 2019

Organic geochemical investigation of far‐field tsunami deposits of the Kahana Valley, O'ahu, Hawai'i

Far‐field tsunami deposits observed in the Kahana Valley, O'ahu, Hawai'i (USA), were investigated for their organic‐geochemical content. During short high‐energy events, (tsunamis and storms) organic and chemical components are transported with sediment from marine to terrestrial areas. This study investigates the use of anthropogenic based...

Bellanova, Piero; Frenken, Mike; Richmond, Bruce M.; Schwarzbauer, Jan; La Selle, Seanpaul; Griswold, Frances; Jaffe, Bruce E.; Nelson, Alan R.; Reicherter, Klaus

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Year Published: 2018

Honolulu Magnetic Observatory

Tucked in a grove of thorny mesquite trees, on an ancient coral reef on the south side of the Hawaiian island of Oahu, west of Pearl Harbor, a small unmanned observatory quietly records the Earth’s time-varying magnetic field. The Honolulu Magnetic Observatory is 1 of 14 that the U.S. Geological Survey Geomag­netism Program operates at various...

Love, Jeffrey J.; Finn, Carol A.
Love, J.J., and Finn, C.A., 2018, Honolulu Magnetic Observatory: U.S. Geological Survey Fact Sheet 2018–3029, 2 p.

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Year Published: 2018

Groundwater-level, groundwater-temperature, and barometric-pressure data, July 2017 to February 2018, Hālawa Area, Oʻahu, Hawaiʻi

The Red Hill Bulk Fuel Storage Facility, operated by the U.S. Navy and located in the Hālawa area, Oʻahu, Hawaiʻi, includes 20 underground storage tanks that can hold a total of 250 million gallons of fuel. In January 2014, the U.S. Navy notified the Hawaiʻi Department of Health and U.S. Environmental Protection Agency of release of an estimated...

Mitchell, Jackson N.; Oki, Delwyn S.
Mitchell, J.N., and Oki, D.S., 2018, Groundwater-level, groundwater-temperature, and barometric-pressure data, July 2017 to February 2018, Hālawa Area, O‘ahu, Hawai‘i: U.S. Geological Survey Open-File Report 2018–1147, 35 p., https://doi.org/10.3133/ofr20181147.

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Year Published: 2018

Volcanic aquifers of Hawai‘i—Hydrogeology, water budgets, and conceptual models

Hawai‘i’s aquifers have limited capacity to store fresh groundwater because each island is small and surrounded by saltwater. Saltwater also underlies much of the fresh groundwater. Fresh groundwater resources are, therefore, particularly vulnerable to human activity, short-term climate cycles, and long-term climate change. Availability of fresh...

Izuka, Scot K.; Engott, John A.; Rotzoll, Kolja; Bassiouni, Maoya; Johnson, Adam G.; Miller, Lisa D.; Mair, Alan
Izuka, S.K., Engott, J.A., Rotzoll, Kolja, Bassiouni, Maoya, Johnson, A.G., Miller, L.D., and Mair, Alan, 2018, Volcanic aquifers of Hawai‘i—Hydrogeology, water budgets, and conceptual models (ver. 2.0, March 2018): U.S. Geological Survey Scientific Investigations Report 2015-5164, 158 p., https://doi.org/10.3133/sir20155164.

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Year Published: 2018

Spatially distributed groundwater recharge estimated using a water-budget model for the Island of Maui, Hawai`i, 1978–2007

Demand for freshwater on the Island of Maui is expected to grow. To evaluate the availability of fresh groundwater, estimates of groundwater recharge are needed. A water-budget model with a daily computation interval was developed and used to estimate the spatial distribution of recharge on Maui for average climate conditions (1978–2007 rainfall...

Johnson, Adam G.; Engott, John A.; Bassiouni, Maoya; Rotzoll, Kolja
Johnson, A.G., Engott, J.A., Bassiouni, Maoya, and Rotzoll, Kolja, 2018, Spatially distributed groundwater recharge estimated using a water-budget model for the Island of Maui, Hawai`i, 1978–2007 (ver. 2.0, February 2018): U.S. Geological Survey Scientific Investigations Report 2014–5168, 53 p., https://doi.org/10.3133/sir20145168.

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Year Published: 2017

Rigorously valuing the role of coral reefs in coastal protection: An example from Maui, Hawaii, U.S.A.

The degradation of coastal habitats, particularly coral reefs, raises risks by exposing communities to flooding hazards. The protective services of these natural defenses are not assessed in the same rigorous, economic terms as artificial defenses such as seawalls, and therefore often not considered in decision-making. Here we present a new...

Storlazzi, Curt D.; Reguero, Borja G.; Lowe, Erik; Shope, James B.; Gibbs, Ann E.; Beck, Mike; Nickel, Barry A.
Storlazzi, C.D., Reguero, B., Lowe, E., Shope, J.B., Gibbs, A.E., Beck, M.W., and Nickel, B., 2017. “Rigorously valuing the role of coral reefs in coastal protection: An example from Maui, Hawaii, U.S.A.” Coastal Dynamics 2017, p. 665-674.

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Year Published: 2017

Measuring surface-water loss in Honouliuli Stream near the ‘Ewa Shaft, O‘ahu, Hawai‘i

The Honolulu Board of Water Supply is currently concerned with the possibility of bacteria in the pumped water of the ‘Ewa Shaft (State well 3-2202-21). Groundwater from the ‘Ewa Shaft could potentially be used to meet future potable water needs in the ‘Ewa area on the island of O‘ahu. The source of the bacteria in the pumped water is unknown,...

Rosa, Sarah N.
Rosa, S.N., 2017, Measuring surface-water loss in Honouliuli Stream near the ‘Ewa Shaft, O‘ahu, Hawai‘i: U.S. Geological Survey Scientific Investigations Report 2017–5042, 14 p., https://doi.org/10.3133/sir20175042.

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Year Published: 2017

Spatially distributed groundwater recharge for 2010 land cover estimated using a water-budget model for the Island of O‘ahu, Hawai‘i

Owing mainly to projected population growth, demand for freshwater on the Island of Oʻahu is expected to increase by about 26 percent between 2010 and 2030, according to the City and County of Honolulu. Estimates of groundwater recharge are needed to evaluate the availability of fresh groundwater. For this study, a water-budget model with a daily...

Engott, John A.; Johnson, Adam G.; Bassiouni, Maoya; Izuka, Scot K.; Rotzoll, Kolja
Engott, J.A., Johnson, A.G., Bassiouni, Maoya, Izuka, S.K., and Rotzoll, Kolja, 2017, Spatially distributed groundwater recharge for 2010 land cover estimated using a water-budget model for the Island of O‘ahu, Hawai‘i (ver. 2.0, December 2017): U.S. Geological Survey Scientific Investigations Report 2015–5010, 49 p., https://doi.org/10.3133/sir20155010.

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Year Published: 2016

Panel regressions to estimate low-flow response to rainfall variability in ungaged basins

Multicollinearity and omitted-variable bias are major limitations to developing multiple linear regression models to estimate streamflow characteristics in ungaged areas and varying rainfall conditions. Panel regression is used to overcome limitations of traditional regression methods, and obtain reliable model coefficients, in particular to...

Bassiouni, Maoya; Vogel, Richard M.; Archfield, Stacey A.

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Year Published: 2016

Low-flow characteristics for streams on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi, State of Hawaiʻi

Statistical models were developed to estimate natural streamflow under low-flow conditions for streams with existing streamflow data at measurement sites on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi. Streamflow statistics used to describe the low-flow characteristics are flow-duration discharges that are equaled or exceeded between...

Cheng, Chui Ling
Cheng, C.L., 2016, Low-flow characteristics for streams on the Islands of Kauaʻi, Oʻahu, Molokaʻi, Maui, and Hawaiʻi, State of Hawaiʻi: U.S. Geological Survey Scientific Investigations Report 2016-5103, 36 p., http://dx.doi.org/10.3133/sir20165103.

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multicolored map of Ocean Shores, Washington
April 13, 2017

The Pedestrian Evacuation Analyst is an ArcGIS extension that estimates how long it would take for someone to travel on foot out of a hazardous area that was threatened by a sudden event such as a tsunami, flash flood, or volcanic lahar. It takes into account the elevation changes and the different types of landcover that a person would encounter along the way.

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Coqui frog sitting on a red Ti plant leaf
April 1, 2019

Coqui frog on a red ti leaf

A coqui frog sits on a red ti leaf, next to a quarter for scale. Native to Puerto Rico, coqui frogs are an invasive species in Hawaii.

Coqui frog on red ti plant leaf
April 1, 2019

Coqui frog on a red ti plant leaf

A coqui frog rests on a red ti plant leaf. Native to Puerto Rico, coqui are an invasive species in Hawaii.

Image of wind turbine towering over trees
December 31, 2018

Wind turbine towering over trees

A wind turbine rising above Oʻahu trees forms part of a wind energy installation where USGS bat research is taking place.

Equipment set up on the ground below a wind turbine.
December 31, 2018

Equipment set up at wind energy site

Bat detection and monitoring equipment set up below a turbine at an Oʻahu, Hawaiʻi wind energy site.

Wind turbines and trees against sky at sunset.
December 31, 2018

Windmills at sunset, Oʻahu

Turbines at a wind energy site on Oʻahu, Hawaiʻi.

 Department of Interior UAS pilots
December 31, 2018

UAS pilots at Kilauea

 Department of Interior UAS pilots from left to right – Elizabeth Pendleton (USGS, Woods Hole, MA), Colin Milone (Office of Aviation Services, AK), John Vogel (USGS; Flagstaff, AZ), Sandy Brosnahan (USGS, Woods Hole, MA), Brandon Forbes (USGS; Tuscon, AZ), Chris Holmquist-Johnson

...
December 31, 2018

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption Response

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States. The UAS were used to survey areas otherwise inaccessible or too hazardous for field crews or manned aircraft, collect multiple types of data, and provide 24/7 real-time situational awareness at Kīlauea

...
December 31, 2018

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption (AD)

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States. The UAS were used to survey areas otherwise inaccessible or too hazardous for field crews or manned aircraft, collect multiple types of data, and provide 24/7 real-time situational awareness at Kīlauea

...
November 29, 2018

Impact of Future Climate and Non-Natives on HI's Aquatic Ecosystems

A warming climate will have fundamental impacts on freshwater, a critical driver of tropical island ecosystems. Declining baseflows are of particular concern as they threaten to interrupt the link between the freshwater habitats of adult migratory fish and the marine environments where their larvae grow and disperse, especially where habitat availability is already limited

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Image of yellow bat against blue and red background.
November 9, 2018

Near-infrared image of a bat in flight

A near-infrared image of a Hawaiian Hoary bat in flight is part of a project to measure bat activity on a wind energy site on Oʻahu, Hawaiʻi.

August 30, 2018

PubTalk 8/2018 — What on Earth is going on at Kilauea Volcano?

Title: What on Earth is going on at Kilauea Volcano?

  • First significant summit explosions in nearly a century
  • Largest summit collapse volume since at least 1800
  • Voluminous fissure eruptions feeding channelized lava flow
  • Unparalleled new opportunities for understanding the volcanic system
Before and after views of a water fall.  First shows light flow of water over the falls, the second shows heavy flow.
August 23, 2018

Impact of Hurricane Lane on Wailuku River

Two views from the Rainbow Falls overlook, downstream of the Wailuku River streamgage near Hilo, Hawaii. The image on the left shows a typical base flow of about 35 cubic feet per second (cfs). The image on the right shows the early impact of Hurricane Lane with a flow of about 26,000 cfs taken at 8:35 a.m. HST, August 23, 2018. This U.S. Geological Survey streamgage has

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Map showing the islands of Hawaii to show the areas where coral reefs are found.
July 1, 2019

A new USGS Open-File Report describes the coral reefs of Maui, Moloka‘i, Lānaʻi, and Kahoʻolawe in detail, including location, extent, coral cover, and connectivity.

11:47 a.m. HST. Scientist measures the surface temperature of a cra...
May 8, 2019

The team at the U.S. Geological Survey Hawaiian Volcano Observatory is one of several finalists nominated for the 2019 Service to America Medals.

A long skinny core section of mud with a sandy layer in the middle of it lays on the marsh grass near where the core was taken.
May 3, 2019

In a comprehensive survey of Hawaiian tsunami deposits, USGS scientists from the USGS Pacific Coastal and Marine Science Center and collaborators found evidence for a widespread tsunami striking the islands between 1250 and 1450 CE.

USGS
April 27, 2019

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.2 earthquake on Saturday, April 27, 2019, at 5:26 p.m. HST.

This is a photo of one of the large fissures in the Southwest Rift Zone.
April 13, 2019

Magnitude-5.3 earthquake east of Kalaoa, Island of Hawai‘i

Before and after views of a water fall.  First shows light flow of water over the falls, the second shows heavy flow.
August 24, 2018

Editor’s note: This article will be updated online with more information on the USGS response to Hurricane Lane as it becomes available.

Close-up photograph of stem, leaves and flower buds of haha plant
June 8, 2018

Caly isn't likely to wonder off off, but with a remote camera and monitoring station online 24-hours a day, USGS and partners at the State of Hawai‘i Division of Forestry and Wildlife, University of Hawai‘i, and the USFWS can learn how an extremely rare plant is responding to changes in environmental conditions.

Image: Monitoring Gas Emissions from Kilauea Volcano
May 17, 2018

With ash eruptions occurring from Kilauea’s summit this week, there is a threat of an even larger steam-driven violent explosion. Such an eruption could happen suddenly and send volcanic ash 20,000 feet into the air, threatening communities for miles.

Glowing lava flowing down a stream channel with tall rock banks.People watch from the bank tops.
May 8, 2018

Representatives of the news media are invited to join a telephone briefing for the latest updates on Kīlauea's volcanic activity and its impacts.

Corallimorph infestation on coral reef 2
March 29, 2018

Honolulu, Hawaii – Control efforts such as the removal of shipwrecks and application of chlorine may help mitigate the damaging effects of corallimorph, which is a type of invasive anemone, on valuable coral reefs in the Central Pacific Ocean, according to a new U.S. Geological Survey study.

CT scans and photographs of coral collected from reef near polluted groundwater seeps. One set shows more erosion than the other
November 27, 2017

Coral reefs already stressed by ocean acidification are particularly vulnerable to polluted groundwater, according to a recent study by USGS geologist Nancy Prouty and colleagues.

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